NCLEX Review & Nursing School

Hematologic System

The Blood is composed of several primary components

• RBC (red blood cells/erythrocytes)
• WBC (white blood cells/ erythrocytes
• Platelets (thrombocytes)

Hematopoiesis– the process of the replenishing in the supply of blood within the body.

• – The primary site for hematopoeisis is the bone marrow.

• CBC (Complete Blood Count)
• RBC’s= 4.2-6.1 mil g/dl
• HGB= 11.5- 17.5 g/dl
• HCT= 36%- 52%

Hematological Diseases

• Pharmacology
• Hematology

Anemia

Hemophilia

Leukemia

Blood Transfusion

Polycythemia Vera

B Thalassemia Major

– reduced production of one of the globin chains in the synthesis of hemoglobin.

Hodgkin’s Disease

– A malignancy of the lymph nodes.

• Hodkin’s Lymphoma
• Non-Hodgkin’s Lymphoma

Nephroblastoma (Wilm’s Tumor)

– intrabdominal & kidney tumor in childhood.